1.此句出處：
It is all very well to blame traffic jams,the cost of petrol and the quick pace of modern life,but manners on the roads are becoming horrible.Everybody knows that the nicest men become monsters behind the wheel.It is all very well,again,to have a tiger in the tank,but to have one in the driver’s seat is another matter altogether.You might tolerate the odd road hog,the rude and inconsiderate driver,but nowadays the well mannered motorist is the exception to the rule.Perhaps the situation calls for a “Be Kind to Other Drivers” campaign,otherwise it may get completely out of hand.
2.
分析：本句中tiger原義為“老虎”,但在此處意指“標(biāo)號(hào)高的優(yōu)質(zhì)汽油”.本文是講司機(jī)在馬路上開車時(shí)的行文舉止,故第二個(gè)不定式中的one（tiger）,從上下文的邏輯意思看,無(wú)疑是指“橫沖直撞的（或者粗魯亂開車的）司機(jī)”,相當(dāng)于英語(yǔ)中的reckless driver.
3.此句翻譯：
當(dāng)然油箱里裝滿優(yōu)質(zhì)汽油倒是好事,但是駕駛室里要是坐著橫沖直撞的司機(jī)就完全是另一回事了.
希望可以幫到你!